Aballoon has a maximum capacity of 1700 m3. on a cool morning (temperature = 10°c, some hot-air balloonists start filling their balloon with air until it occupies three-fourths of the maximum possible volume. then, they turn on the propane burner to fill the balloon to its complete volume of 1700 m3. the temperature at which the air fills the balloon to its maximum capacity is:

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u. s. legal proceeding.)

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above